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Soontact · Automatic Carton Sealer

Automatic Carton Sealer Machine — TL-CR-200SL

Filled cartons in, top-taped cartons out. Soontact's carton sealer adjusts across a wide box size range and tape width without manual changeover kits.

Automatic Carton Sealer Machine
180–550
Carton Width (mm)
120–480
Carton Height (mm)
48–72
Tape Width (mm)
How It Works

Top Sealing in One Pass

A filled carton enters the machine already bottom-sealed, and folding guides and a tape head close and seal the top seam as it travels through — no operator handling the box in between.

  1. Set Width & HeightSide guides and top rollers adjust to the carton's width and height before the run.
  2. Infeed & Belt DriveSide belts drive the carton through the machine at a consistent, controlled pace.
  3. Flap FoldingGuide rails fold the leading and trailing top flaps closed.
  4. Top TapingA tape head seals the top seam as the carton passes through.
  5. OutfeedThe fully sealed carton exits ready for palletizing or the next line step.

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Sealing System

One Machine, a Range of Tape Widths

The tape head adjusts across a continuous 48–72 mm range, so switching between tape widths for lighter and heavier cartons doesn't mean swapping equipment — just resetting the head.

48
mm
72
mm

Tell us your typical carton weight when you inquire and we'll confirm the right tape width for your line.

BOPP sealing tape — 48–72 mm adjustable width
Adjusts to the Carton — TL-CR-200SL side belt drive and folding guides
Built From Proven Parts

Adjusts to the Carton, Not the Other Way Around

Side guides and top rollers set the running width and height across the full 180–550 mm and 120–480 mm ranges, so a size change is a guide adjustment rather than a retool. Side belts keep the carton square and moving at a steady pace through the folding and taping stations, which is what keeps the top seam straight and fully sealed whether the carton is at the small or large end of the size range.

Technical Data

Specifications

Carton Width180–550 mm
Carton Height120–480 mm
Tape Width48–72 mm

Additional specs (sealing speed, total power, air supply, machine size/weight, power supply) will be added here once confirmed.

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Line Integration

Fits Downstream of Loading, Upstream of Palletizing

The carton sealer is built to sit right after a cartoning or filling step and hand off a fully top-sealed carton to whatever comes next.

TL-CT-200C Automatic Carton Erector
Pairs With

TL-CT-200C Automatic Carton Erector

Further upstream, the TL-CT-200C is what forms the carton in the first place — opening, squaring, and bottom-sealing each flat blank so it arrives at the filling and cartoning step already erected. Running it ahead of the TL-CT-200H / 300H and this sealer means nobody's hand-building boxes anywhere in the line, from flat blank to sealed carton.

View TL-CT-200C →

Also Pairs With

TL-CT-200H / 300H Automatic Cartoning Machine

Once the TL-CT-200H / 300H loads product into the carton and folds the top flaps closed, the carton moves straight into this sealer's infeed. Side belts drive it through the folding guides and tape head, and it comes out the other end fully sealed — no operator taping boxes by hand between the two machines.

View TL-CT-200H / 300H →

TL-CT-200H / 300H Automatic Cartoning Machine
Full Line

See the Complete Secondary Packaging Line

The carton erector, cartoning machine, and this sealer are three stages of the same secondary packaging line — browse the full setup and other line configurations.

View Secondary Packaging Lines →

Tell us your target line speed and carton spec when you inquire — we'll confirm conveyor spacing and whether one of each machine keeps pace with your line, or whether a second unit is worth adding.

[[IMG: Soontact factory floor / QC before shipment]]
Why Soontact

Built For Continuous Production

Every carton sealer is tested and QC-checked on our factory floor before it's crated for export, running the same carton size and tape width range you'll use on your line.

Wide Size Range

Covers 180–550 mm width and 120–480 mm height in one machine.

Tape Flexibility

48–72 mm adjustable range for lighter and heavier cartons.

Quick Changeover

Guide adjustment, not a retool, when box sizes change.

Line-Ready

Drops in downstream of filling, upstream of palletizing.

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FAQ

Common Questions

Width 180–550 mm and height 120–480 mm, adjustable within a single machine setup.
The tape head adjusts across a 48–72 mm range. Tell us your typical carton weight when you inquire and we'll confirm the right width for your order.
Guides adjust to fit any carton within the ranges above. Let us know how often your line changes sizes and we'll confirm whether manual or automatic size-setting is the right fit.
Yes — the infeed and outfeed conveyors can be positioned to connect with an upstream filling station and a downstream palletizer or shipping line.

Ready to Automate Carton Sealing?

Send us your carton dimensions and tape spec — we'll confirm the right configuration for your line.

Request a Quote
Soontact provides complete flow packing solutions for manufacturers worldwide. Contact our packaging engineers to discuss your specific products, production volumes, and packaging material requirements.

We offer machine demonstrations, application testing, and detailed proposals that address your particular operational needs.
Get Your Custom Packaging Solution
Tell us about your product and production needs. Our engineers will recommend the right machine configuration for your application.